Clock of "The Metronome" at Union Square
From the official Union Square website:

How to read the clock – the Metronome -- on the art wall at 1 Union Square South? The 15 numbers of the digital clock display time going and coming relative to midnight. Read time going left to right and time coming in the opposite direction. So, if the clock reads 070437000235616 it means that it is 7:04 A.M. (7 hours and 04 minutes since midnight) and that there are 16 hours, 56 minutes and 23 seconds remaining until midnight. The three numbers in between are a blur of moving numbers.